EP3586055A1 - Universal target stand for adas static calibration, method of using the same, target plate for the same and use of a mat for the same - Google Patents

Universal target stand for adas static calibration, method of using the same, target plate for the same and use of a mat for the same

Info

Publication number
EP3586055A1
EP3586055A1 EP18708466.0A EP18708466A EP3586055A1 EP 3586055 A1 EP3586055 A1 EP 3586055A1 EP 18708466 A EP18708466 A EP 18708466A EP 3586055 A1 EP3586055 A1 EP 3586055A1
Authority
EP
European Patent Office
Prior art keywords
target
stand
target plate
support structure
central support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18708466.0A
Other languages
German (de)
French (fr)
Other versions
EP3586055B1 (en
Inventor
John Innes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilkington Group Ltd
Original Assignee
Pilkington Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pilkington Group Ltd filed Critical Pilkington Group Ltd
Publication of EP3586055A1 publication Critical patent/EP3586055A1/en
Application granted granted Critical
Publication of EP3586055B1 publication Critical patent/EP3586055B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
    • G09F15/0018—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels panel clamping or fastening means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
    • G09F15/0056—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels portable display standards
    • G09F15/0062—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels portable display standards collapsible
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/06—Arms
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50393—Floor conveyor, AGV automatic guided vehicle

Definitions

  • the present invention relates to a camera calibration device and a camera calibration method for carrying out camera calibration for an advanced driver assistance system (ADAS).
  • ADAS advanced driver assistance system
  • ADAS advanced driver assistance system
  • US9279670B2 (Schommer) is an example of a method and a device for calibrating a surroundings sensor in a vehicle, placing a calibrating panel target and recording an image of the target with the surroundings sensor, wherein the surroundings sensor comprises a camera.
  • the present invention provides a universal stand and support for optical targets to position the targets at a predetermined height and/or position during calibration having the features set out in claim 1.
  • the universal stand allows a common calibration stand for different vehicles and vehicle
  • the invention is used for camera calibration on a static vehicle after fitting or replacement of a windshield having at least one camera mounted thereon forming part of an ADAS for the vehicle.
  • the invention in a first embodiment is a universal targeting stand for an advanced driver assistance system, comprising:
  • the target image is attached to the target plate by a magnetic attachment.
  • the universal target stand further comprises: - a pair of removable arms extending laterally away from the central support structure; and
  • each of said pair of lateral target frames being attached to a respective one of said lateral arms.
  • a universal targeting stand for an advanced driver assistance system comprising:
  • each of said pair of lateral target plates being attached to a respective one of said lateral arms by a connecting mechanism;
  • each of the central target plate and the lateral target plates are rotatably connected to the central support structure by their connecting mechanisms.
  • a universal targeting stand for an advanced driver assistance system comprising: - a central support structure;
  • the target plate having front and rear faces, with the rear face of the target plate being selectively connected to the central support structure
  • the target plate comprises a plurality of panel sections.
  • the panel sections comprise four panel sections which are foldably connected in series to each other.
  • the stand comprises a wheeled base.
  • the calibrating mat comprising a series of grid lines for calibration.
  • the invention is a method of using a universal targeting stand of the first aspect, comprising the step of affixing a target sheet to a target plate by utilizing a target sheet that is magnetic or attachable by hook and loop fasteners to the target plate.
  • the invention is a target plate for use with the universal targeting stand of the first aspect, comprising a target image printed on a side of a vinyl sheet and a magnetic backing sheet.
  • the invention is use of a calibrating mat with a universal targeting stand of the first aspect, the calibrating mat comprising ends connecting a mat surface between them wherein the mat surface has measurement markings for aligning with a vehicle.
  • Figure 1 shows a schematic view of the present invention with three targeting boards
  • Figure 2 shows an embodiment of the present invention with no targeting boards
  • Figure 3 shows a mechanism for holding a targeting board to the stand
  • Figure 4 shows the mechanism of Figure 3 without a tripod attached
  • Figure 5 shows a vinyl target for use with an embodiment of the present invention
  • Figure 6 shows a schematic view of a magnetic backed vinyl target for use in the present invention
  • Figure 7 shows an alignment mat for use with the present invention.
  • Figure 8 shows an embodiment of the present invention with three target frames attached.
  • Figure 9 shows an embodiment of a target plate according to the present invention.
  • Figure 10 shows an embodiment of a target plate and stand according to the present invention.
  • Figure 11 shows an embodiment of a calibrating mat and a target stand according to the present invention.
  • Figure 12 shows the rear face of a target plate according to an embodiment of the present invention.
  • FIG. 1 shows a universal ADAS stand 10 according to the present invention.
  • the universal stand 10 includes a central support 12 with two side supports 14.
  • the central support 12 is preferably a tripod with legs 16, 17, 18 and central beam 20. While Figure 1 depicts a tripod arrangement for the central support 12, other support structures are suitable for use within the scope of the present invention.
  • Target plates or boards 50 are attached to each of the central 12 and side 14 supports for calibrating an ADAS.
  • the target plates 50 are preferable made of steel or another material to which a magnet can be affixed.
  • ADAS calibration systems typically use a single targeting image, two targeting images or three targeting images.
  • the invention as depicted in figure 1 can be used with just the central support 12 and the side supports 14 can be unused, or removed for convenience.
  • any one of the central support 12 and one of the side supports 14 can support target plates 50 for targeting, or the two side supports 14 can each support a target plate 50 for targeting.
  • each of the central 12 and side supports 14 can support an individual plate 50 for targeting.
  • the central support 12 utilizes a tripod system, as discussed above, and the side supports merely utilize a single beam, as shown.
  • the side supports 14 could also be tripods, or any other suitable support system.
  • the side targets could be supported with beams from the central support, without additional support.
  • Figure 2 shows an embodiment of the universal ADAS stand wherein no target frames are attached.
  • the central support 12 is connected to two side arms 22.
  • Side arms 22 extend laterally from the central support to support additional targeting frames for three target ADAS stands.
  • Figure 3 shows a mechanism 30 for holding the target frame in place.
  • Each of the side arms 22 can be connected to the central support 12 by connecting piece 24.
  • Preferably connecting piece 24 slides over side arm 22 and is held in place by adjusting knob 26.
  • Knob 26 can have a bolt (not shown) which can extend into precut holes (not shown) in arm 22, or can frictionally fit against the exterior of arm 22.
  • the mechanism 30 can also contain a disconnecting knob 28 which can be used to secure a target plate 50 (see fig 1) to the universal support.
  • the mechanism 30 also has a receiving portion 32 which sits over the central support 12 to hold the mechanism 30 in place.
  • the receiving portion is rotatable with respect to the central support 12, and can include a locking knob 34 to secure the mechanism 30 with respect to the central support 12.
  • tripod base While a specific form of tripod base is disclosed herein, the invention is designed to be used with a variety of standard bases, typically tripod bases, but other known support structures can be used in conjunction with the present invention.
  • Figure 4 shows a mechanism 30 for use in conjunction with the present invention, wherein the tripod has been removed. This embodiment also shows a level bubble 36, which can be used in conjunction with the present invention to allow for leveling of the targets.
  • FIG. 5 shows a vinyl target.
  • a target 52 is affixed to each of the target plates 50 required for calibration of the ADAS of the relevant vehicle. It has been found that a preferred method for affixing the target 52 to the target plate 50 is by utilizing a target 52 that is magnetic to attach to the target plate 50. To accomplish this, a preferred embodiment of the present invention prefers that the target image 58 or images be obtained and printed on a vinyl sheet with a magnetic backing. An example of this is shown on Figure 6. A magnetic target of this type is easily attachable on the target plate 50 and can then be removed after use. Therefore multiple targets 52 can be available representing different makes and models of vehicles from different manufacturers.
  • the target 52 can thus be rotatable and movable on the board 50 so that different targets for multiple vehicles and manufacturers can be accommodated. While a magnetic target board 50 and target 52 are preferred, alternative fastening methods such as Velcro, hook and loop fasteners, static attraction or other known attachment methods can be utilized within the scope of the present invention. Any attachment that allows for repeated application and removal of a variety of targets to the target board could be utilized within the scope of the present invention. Thus, the present invention allows for repeated use of multiple targets once they are prepared.
  • FIG. 6 shows target sheet 52 which, in this embodiment, includes a magnetic backing sheet 54 and a vinyl target side 56 with an image printed on the target side.
  • a magnetic backing sheet 54 Preferably, once an electronic version of the image is obtained it is printed onto the target side 56 of the target sheet 52.
  • the target sheet can then be affixed by an operator onto the magnetic target plate 50 by the magnetic backing 54. The operator can align the target 52 manually for calibration of the ADAS.
  • a calibrating mat 60 can be utilized by the operator to help align the universal ADAS targeting stand 10.
  • An example of such a mat is shown schematically in Figure 7.
  • the mat 60 includes ends 62, which can be metal rods or other suitable materials connecting a mat surface 64 between them.
  • the mat surface 64 is vinyl or other durable material.
  • Measurement markings 66 can be placed on the mat surface 64 so the operator can align the universal ADAS stand relative to the vehicle.
  • the mat can be aligned at the front tires of the vehicle to allow the operator to determine distances to the vehicle for the precise
  • a preferred mat could be white vinyl with a printed black grid with measurements printed on the mat to display relative distances.
  • Such a mat can be placed at the front of the vehicles front tires to ensure measurements are substantially square to the front of the vehicle. For an example, measurements can be printed on the mat at 1 foot increments, or any other increment which may be suitable.
  • Figure 8 shows an example of a three target ADAS stand with a single tripod for supporting all three frames, with target images attached to target sheets 52.
  • the target sheets 52 are mounted on target plates 50.
  • the present invention allows 360 degree rotation of all of the target plates 50, and is convertible in that multiple positions relative to the central target can be provided by the side targets.
  • the arms 22 can additionally be "telescoping", to extend the distance between the central and side targets to accommodate systems from different manufacturers.
  • the operator can determine from a particular vehicle how many target frames are needed. If a single frame is needed, the side arms 22 and side supports 14 can be removed. The target 52 can then be attached to the target plate 50 and can then be aligned for the user of calibration of the ADAS. When three target frames are needed, the side arms 22 and supports 14 can be attached. The targets can be affixed to the target plates 50 which are attached to a mechanism at each of the target points, and each can be arranged for calibration of the ADAS.
  • Figures 9-14 depict an additional embodiment of the present invention, a stand 100. While the above embodiment of a stand 10 is suitable for most ADAS targets on the market, some larger targets and more complex configurations require a larger stand than the stand 10.
  • a series of panel sections 151 make up the target plate 150.
  • the sections 151 are connected to each other, for example by hinges 152 and can be folded for storage.
  • the sections 151 can be separable and can be connected together for larger targets.
  • four panel sections 151 are included as this is sufficient for most applications.
  • the panel sections 151 comprise "Gator” board with magnetic receptive material on both sides of the panel.
  • the panel sections comprise PVC panels, preferably white PVC, covered on one side with magnetic receptive material.
  • the back side of the panel has two steel tape strips running the vertical length of the panels and a panel hanger at the top of the panel both used to hold the panel in position on a stand 100 (see Figure 12).
  • the stand 100 comprises the panel sections 151.
  • hinged elements 152 connect each of the panel sections 151 on the back face of the panel sections 151.
  • a support structure 102 of any known configuration, then supports the folding target plate 150 in an upright position.
  • the stand structure is an "accordion-type" stand.
  • the support structure 102 comprises a central support and a plurality of side support structures.
  • the target plate 150 is selectively connected to the support structure 102. By releasing the target plate 150 from the support structure 102, the stand 100 is collapsible.
  • Figure 11 shows the folding target plate 150 with a magnetic material 155 disposed on the front face of the folding target plate 150.
  • One or more magnetic targets 170 are placed on front face of the folding target plate 150 for calibration of the ADAS.
  • the magnetic targets 170 are removably attached to the folding target plate 150 so that stand 100 is
  • FIG 11 further depicts an embodiment of a calibrating mat 160 for use with the present invention.
  • the calibrating mat 160 includes grid lines 162 for providing easy reference to distance measurements from the target to calibrate the ADAS.
  • Also shown on Figure 11 is an embodiment of the stand 100 with a wheeled base 172.
  • Providing a wheeled base allows easy mobility of the stand 100 once assembled.
  • the wheeled base preferably comprises a series of bars 174 disposed perpendicular to the folding target plate 150 with each bar 174 having wheels 176 at opposing ends of the bars.
  • the wheels 176 preferably comprise a locking mechanism of any acceptable configuration so that the stand can be locked into a position once the target is moved to the desired position.
  • Figure 12 shows a preferred arrangement comprises two steel tape strips running vertically on the rear of the panel sections 151.
  • each panel section 151 is about 2.5 foot wide and 10 foot in height.
  • Running vertically along a rear face of these panel sections are strips 180, with each strip preferably comprising a metal tape.
  • These strips 180 are designed with an adhesive surface to help adhere the panels to the stand along the length of the panel sections and a panel hanger to hold the target panels, however other attachment mechanisms can be used within the scope of the invention.
  • Also disposed at the top of each panel is at least one hanger 182. The hangers 182 are secured near the top of the panels sections 151 and are used to help support the targets on the stand.
  • the stand is large enough for most known target configurations yet the stand is collapsible and the panels can be removed for ease of transport and storage.
  • the stand is attached to removable wheels, preferably four sets of removable wheels, to allow for adjustment/alignment of the target stand. Once the targeting stand is properly positioned the wheels lock the stand into position.
  • the targets are made on a magnetic material to attach to the magnetic receptive side of the panel allowing them to be repositioned or removed at will.
  • the Master Target Stand described herein differs from known stands because it will accommodate almost all known targets and target configurations and it is portable. Some OEM targets are permanently affixed targets that are made for their specific makes and models. Some OEM stands are not easily transportable, which is also addressed by the present invention.
  • Target plate target board, board, target frame
  • Target sheet (target) 52 Target sheet (target) 54 Magnetic backing sheet

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Studio Devices (AREA)

Abstract

The present invention concerns a universal targeting stand (10,100) for an advanced driver assistance system (ADAS), comprising a central support structure (12,102), a target plate (50,150) selectively connected to the central support structure and a target image (58,158) attached to the target plate. Selective connection of the target plate allows a common calibration stand for different vehicles even where different targets are required. Additionally provided is a method of using a universal targeting stand, a target sheet for use with the universal targeting stand and use of a calibrating mat (60,160) with the universal targeting stand.

Description

UNIVERSAL TARGET STAND FOR ADAS STATIC CALIBRATION, METHOD OF USING THE SAME, TARGET PLATE FOR THE SAME AND USE OF A MAT
FOR THE SAME
BACKGROUND
[0001 ] The present invention relates to a camera calibration device and a camera calibration method for carrying out camera calibration for an advanced driver assistance system (ADAS).
[0002] In recent years, with increasing awareness for safety, more and more vehicles, such as automobiles, have come to be furnished with a camera system, commonly called an advanced driver assistance system (ADAS). Such systems often use image processing technologies instead of simply displaying camera views to provide a better context of the surroundings of the vehicle for a driver.
[0003] US9279670B2 (Schommer) is an example of a method and a device for calibrating a surroundings sensor in a vehicle, placing a calibrating panel target and recording an image of the target with the surroundings sensor, wherein the surroundings sensor comprises a camera.
[0004] Currently, such systems often require a unique set-up, with different calibration systems of stands and target frames (i.e. optical targets, plates or boards) for different vehicle manufacturers, and or models for each
manufacturer. SUMMARY OF THE INVENTION
[0005] The present invention provides a universal stand and support for optical targets to position the targets at a predetermined height and/or position during calibration having the features set out in claim 1. The universal stand allows a common calibration stand for different vehicles and vehicle
manufacturers, even where different numbers and orientations of different targets are required for different vehicles. Additionally provided is a method of using a universal stand for calibrating systems from different vehicle manufacturers. The invention is used for camera calibration on a static vehicle after fitting or replacement of a windshield having at least one camera mounted thereon forming part of an ADAS for the vehicle.
[0006] According to a first aspect, the invention in a first embodiment is a universal targeting stand for an advanced driver assistance system, comprising:
- a central support structure;
- a target plate selectively connected to the support structure; and
- a target image removably attached to the target plate.
[0007] Preferably, the target image is attached to the target plate by a magnetic attachment.
[0008] Preferably, the universal target stand further comprises: - a pair of removable arms extending laterally away from the central support structure; and
- a pair of lateral target frames, each of said pair of lateral target frames being attached to a respective one of said lateral arms.
[0009] In a second embodiment, a universal targeting stand for an advanced driver assistance system, comprising:
- a central support structure;
- a central target plate selectively connected to the central support
structure;
- a pair of removable arms extending laterally away from the central support structure; and
- a pair of lateral target plates, each of said pair of lateral target plates being attached to a respective one of said lateral arms by a connecting mechanism; and
- a target image removably attached to at least one of the central target plate and the lateral target plates;
- wherein each of the central target plate and the lateral target plates are rotatably connected to the central support structure by their connecting mechanisms.
[00010] In a third embodiment, a universal targeting stand for an advanced driver assistance system, comprising: - a central support structure;
- a target plate;
- the target plate having front and rear faces, with the rear face of the target plate being selectively connected to the central support structure,
- the front face of the target plate having a magnetic surface disposed
thereon, and
- a magnetic target disposed on and held by the magnetic surface of the target plate, so that the magnetic target is removably attached to the target plate.
[0011 ] Preferably, wherein the target plate comprises a plurality of panel sections.
[0012] Preferably, wherein the panel sections comprise four panel sections which are foldably connected in series to each other.
[0013] Preferably, wherein the stand comprises a wheeled base.
[0014] Preferably, further comprising a calibrating mat, the calibrating mat comprising a series of grid lines for calibration.
[0015] According to a second aspect, the invention is a method of using a universal targeting stand of the first aspect, comprising the step of affixing a target sheet to a target plate by utilizing a target sheet that is magnetic or attachable by hook and loop fasteners to the target plate. [0016] According to a third aspect, the invention is a target plate for use with the universal targeting stand of the first aspect, comprising a target image printed on a side of a vinyl sheet and a magnetic backing sheet.
[0017] According to a fourth aspect, the invention is use of a calibrating mat with a universal targeting stand of the first aspect, the calibrating mat comprising ends connecting a mat surface between them wherein the mat surface has measurement markings for aligning with a vehicle.
BRIEF DESCRIPTION OF THE DRAWINGS
[00018] The invention is disclosed further by the attached drawings.
Figure 1 shows a schematic view of the present invention with three targeting boards;
Figure 2 shows an embodiment of the present invention with no targeting boards; Figure 3 shows a mechanism for holding a targeting board to the stand;
Figure 4 shows the mechanism of Figure 3 without a tripod attached;
Figure 5 shows a vinyl target for use with an embodiment of the present invention;
Figure 6 shows a schematic view of a magnetic backed vinyl target for use in the present invention;
Figure 7 shows an alignment mat for use with the present invention; and
Figure 8 shows an embodiment of the present invention with three target frames attached. Figure 9 shows an embodiment of a target plate according to the present invention.
Figure 10 shows an embodiment of a target plate and stand according to the present invention.
Figure 11 shows an embodiment of a calibrating mat and a target stand according to the present invention.
Figure 12 shows the rear face of a target plate according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] Figure 1 shows a universal ADAS stand 10 according to the present invention. The universal stand 10 includes a central support 12 with two side supports 14. The central support 12 is preferably a tripod with legs 16, 17, 18 and central beam 20. While Figure 1 depicts a tripod arrangement for the central support 12, other support structures are suitable for use within the scope of the present invention. Target plates or boards 50 are attached to each of the central 12 and side 14 supports for calibrating an ADAS. The target plates 50 are preferable made of steel or another material to which a magnet can be affixed.
[0020] Conventional ADAS calibration systems typically use a single targeting image, two targeting images or three targeting images. In the case of a single target ADAS calibration system, the invention as depicted in figure 1 can be used with just the central support 12 and the side supports 14 can be unused, or removed for convenience. In an ADAS calibration system where two target frames are required, any one of the central support 12 and one of the side supports 14 can support target plates 50 for targeting, or the two side supports 14 can each support a target plate 50 for targeting. In an ADAS calibration system where three target frames are required, each of the central 12 and side supports 14 can support an individual plate 50 for targeting.
[0021 ] In a preferred embodiment of the present invention, the central support 12 utilizes a tripod system, as discussed above, and the side supports merely utilize a single beam, as shown. However, it is possible within the scope of the invention that the side supports 14 could also be tripods, or any other suitable support system. Also within the scope of the present invention, the side targets could be supported with beams from the central support, without additional support.
[0022] Figure 2 shows an embodiment of the universal ADAS stand wherein no target frames are attached. The central support 12 is connected to two side arms 22. Side arms 22 extend laterally from the central support to support additional targeting frames for three target ADAS stands.
[0023] Figure 3 shows a mechanism 30 for holding the target frame in place. Each of the side arms 22 can be connected to the central support 12 by connecting piece 24. Preferably connecting piece 24 slides over side arm 22 and is held in place by adjusting knob 26. Knob 26 can have a bolt (not shown) which can extend into precut holes (not shown) in arm 22, or can frictionally fit against the exterior of arm 22. [0024] The mechanism 30 can also contain a disconnecting knob 28 which can be used to secure a target plate 50 (see fig 1) to the universal support.
Preferably the mechanism 30 also has a receiving portion 32 which sits over the central support 12 to hold the mechanism 30 in place. Preferably the receiving portion is rotatable with respect to the central support 12, and can include a locking knob 34 to secure the mechanism 30 with respect to the central support 12.
[0025] While a specific form of tripod base is disclosed herein, the invention is designed to be used with a variety of standard bases, typically tripod bases, but other known support structures can be used in conjunction with the present invention.
[0026] Figure 4 shows a mechanism 30 for use in conjunction with the present invention, wherein the tripod has been removed. This embodiment also shows a level bubble 36, which can be used in conjunction with the present invention to allow for leveling of the targets.
[0027] Figure 5 shows a vinyl target. In preferred embodiments of the present invention, a target 52 is affixed to each of the target plates 50 required for calibration of the ADAS of the relevant vehicle. It has been found that a preferred method for affixing the target 52 to the target plate 50 is by utilizing a target 52 that is magnetic to attach to the target plate 50. To accomplish this, a preferred embodiment of the present invention prefers that the target image 58 or images be obtained and printed on a vinyl sheet with a magnetic backing. An example of this is shown on Figure 6. A magnetic target of this type is easily attachable on the target plate 50 and can then be removed after use. Therefore multiple targets 52 can be available representing different makes and models of vehicles from different manufacturers. Additionally, the target 52 can thus be rotatable and movable on the board 50 so that different targets for multiple vehicles and manufacturers can be accommodated. While a magnetic target board 50 and target 52 are preferred, alternative fastening methods such as Velcro, hook and loop fasteners, static attraction or other known attachment methods can be utilized within the scope of the present invention. Any attachment that allows for repeated application and removal of a variety of targets to the target board could be utilized within the scope of the present invention. Thus, the present invention allows for repeated use of multiple targets once they are prepared.
[0028] Figure 6 shows target sheet 52 which, in this embodiment, includes a magnetic backing sheet 54 and a vinyl target side 56 with an image printed on the target side. Preferably, once an electronic version of the image is obtained it is printed onto the target side 56 of the target sheet 52. The target sheet can then be affixed by an operator onto the magnetic target plate 50 by the magnetic backing 54. The operator can align the target 52 manually for calibration of the ADAS.
[0029] In a preferred embodiment a calibrating mat 60 can be utilized by the operator to help align the universal ADAS targeting stand 10. An example of such a mat is shown schematically in Figure 7. In a preferred embodiment, the mat 60 includes ends 62, which can be metal rods or other suitable materials connecting a mat surface 64 between them. Preferably, the mat surface 64 is vinyl or other durable material. Measurement markings 66 can be placed on the mat surface 64 so the operator can align the universal ADAS stand relative to the vehicle. For example, the mat can be aligned at the front tires of the vehicle to allow the operator to determine distances to the vehicle for the precise
measurements required. The ends 62 can then be pulled taut to help ensure that proper alignment is maintained. A preferred mat could be white vinyl with a printed black grid with measurements printed on the mat to display relative distances. Such a mat can be placed at the front of the vehicles front tires to ensure measurements are substantially square to the front of the vehicle. For an example, measurements can be printed on the mat at 1 foot increments, or any other increment which may be suitable.
[0030] Figure 8 shows an example of a three target ADAS stand with a single tripod for supporting all three frames, with target images attached to target sheets 52. The target sheets 52 are mounted on target plates 50. The present invention allows 360 degree rotation of all of the target plates 50, and is convertible in that multiple positions relative to the central target can be provided by the side targets. The arms 22 can additionally be "telescoping", to extend the distance between the central and side targets to accommodate systems from different manufacturers.
[0031 ] In using the present invention, the operator can determine from a particular vehicle how many target frames are needed. If a single frame is needed, the side arms 22 and side supports 14 can be removed. The target 52 can then be attached to the target plate 50 and can then be aligned for the user of calibration of the ADAS. When three target frames are needed, the side arms 22 and supports 14 can be attached. The targets can be affixed to the target plates 50 which are attached to a mechanism at each of the target points, and each can be arranged for calibration of the ADAS.
[0022] Figures 9-14 depict an additional embodiment of the present invention, a stand 100. While the above embodiment of a stand 10 is suitable for most ADAS targets on the market, some larger targets and more complex configurations require a larger stand than the stand 10.
[0032] In the embodiment of a target plate 150 shown in in Figure 9, a series of panel sections 151 make up the target plate 150. Preferably, the sections 151 are connected to each other, for example by hinges 152 and can be folded for storage. Alternatively the sections 151 can be separable and can be connected together for larger targets. Preferably, four panel sections 151 are included as this is sufficient for most applications.
[0033] In a preferred embodiment the panel sections 151 comprise "Gator" board with magnetic receptive material on both sides of the panel. In another embodiment the panel sections comprise PVC panels, preferably white PVC, covered on one side with magnetic receptive material. In a preferred
embodiment the back side of the panel has two steel tape strips running the vertical length of the panels and a panel hanger at the top of the panel both used to hold the panel in position on a stand 100 (see Figure 12). [0034] As shown in Figure 10, the stand 100 comprises the panel sections 151. In a preferred embodiment, hinged elements 152 connect each of the panel sections 151 on the back face of the panel sections 151. A support structure 102, of any known configuration, then supports the folding target plate 150 in an upright position. Preferably the stand structure is an "accordion-type" stand.
[0035] Preferably the support structure 102 comprises a central support and a plurality of side support structures. Advantageously the target plate 150 is selectively connected to the support structure 102. By releasing the target plate 150 from the support structure 102, the stand 100 is collapsible.
[0036] Figure 11 shows the folding target plate 150 with a magnetic material 155 disposed on the front face of the folding target plate 150. One or more magnetic targets 170 are placed on front face of the folding target plate 150 for calibration of the ADAS. Advantageously the magnetic targets 170 are removably attached to the folding target plate 150 so that stand 100 is
configurable for different target images and locations.
[0037] Figure 11 further depicts an embodiment of a calibrating mat 160 for use with the present invention. The calibrating mat 160 includes grid lines 162 for providing easy reference to distance measurements from the target to calibrate the ADAS. Also shown on Figure 11 is an embodiment of the stand 100 with a wheeled base 172. Providing a wheeled base allows easy mobility of the stand 100 once assembled. The wheeled base preferably comprises a series of bars 174 disposed perpendicular to the folding target plate 150 with each bar 174 having wheels 176 at opposing ends of the bars. The wheels 176 preferably comprise a locking mechanism of any acceptable configuration so that the stand can be locked into a position once the target is moved to the desired position.
[0038] Figure 12 shows a preferred arrangement comprises two steel tape strips running vertically on the rear of the panel sections 151. Preferably, each panel section 151 is about 2.5 foot wide and 10 foot in height. Running vertically along a rear face of these panel sections are strips 180, with each strip preferably comprising a metal tape. These strips 180 are designed with an adhesive surface to help adhere the panels to the stand along the length of the panel sections and a panel hanger to hold the target panels, however other attachment mechanisms can be used within the scope of the invention. Also disposed at the top of each panel is at least one hanger 182. The hangers 182 are secured near the top of the panels sections 151 and are used to help support the targets on the stand.
[0039] The stand is large enough for most known target configurations yet the stand is collapsible and the panels can be removed for ease of transport and storage. The stand is attached to removable wheels, preferably four sets of removable wheels, to allow for adjustment/alignment of the target stand. Once the targeting stand is properly positioned the wheels lock the stand into position. The targets are made on a magnetic material to attach to the magnetic receptive side of the panel allowing them to be repositioned or removed at will.
[0040] The Master Target Stand described herein differs from known stands because it will accommodate almost all known targets and target configurations and it is portable. Some OEM targets are permanently affixed targets that are made for their specific makes and models. Some OEM stands are not easily transportable, which is also addressed by the present invention.
[0041 ] In accordance with the provisions of the patent statutes, the present invention has been described in what is considered to represent its preferred embodiments. However, it should be noted that the invention can be practiced otherwise than as specifically illustrated and described without departing from its spirit or scope.
[0042] List of references
10 Universal targeting stand for ADAS
12 Central support structure (central support)
14 Side support
16, 17, 18 Legs
20 Central beam
22 Side arms
24 Connecting piece
26 Adjusting knob
28 Disconnecting knob
30 Mechanism (connecting mechanism)
32 Receiving portion
34 Locking knob
36 Level bubble
50 Target plate (target board, board, target frame)
52 Target sheet (target) 54 Magnetic backing sheet
56 Target side
58 Image
60 Mat
62 End (of mat)
64 Mat surface
66 Markings
100 Stand
102 Support structure (central support structure)
150 Folding target plate
151 Panel sections
152 Hinged elements
155 Magnetic material
158 Image
160 Calibrating mat
162 Grid lines
170 Magnetic targets
172 Wheeled base
174 Bar (of wheeled base)
176 Wheels
180 Strip
182 Hanger

Claims

1 A universal targeting stand (10, 100) for an advanced driver assistance system, comprising:
a central support structure (12, 102);
characterized by a target plate (50, 150) selectively connected to the central support structure (12, 102); and
a target image (58, 158) removably attached to the target plate (50, 150).
2. The universal targeting stand (10, 100) for an advanced driver assistance system according to claim 1, wherein the target image (58, 158) is attached to the target plate (50,150) by a magnetic attachment.
3. The universal targeting stand (10, 100) for an advanced driver assistance system according to claim 1 , further comprising:
a pair of removable arms (22) extending laterally away from the central support structure; and
a pair of lateral target frames, each of said pair of lateral target frames being attached to a respective one of said lateral arms.
4. A universal targeting stand (10, 100) for an advanced driver assistance system, comprising:
a central support structure (12, 102); a central target plate (50, 150) selectively connected to the central support structure (12, 102);
a pair of arms (22) extending laterally away from the central support structure (12, 102); and
a pair of lateral target plates, each of said pair of lateral target plates being attached to a respective one of said lateral arms (22) by a connecting
mechanism (30); and
a target image (58, 158) removably attached to at least one of the central target plate (50, 150) and the lateral target plates;
wherein each of the central target plate (50, 150) and the lateral target plates are rotatably connected to the central support structure (12, 102) by their connecting mechanisms (30).
5. A universal targeting stand (10, 100) for an advanced driver assistance system, comprising:
a central support structure (12, 102);
a target plate (50, 150);
the target plate (50, 150) having front and rear faces, with the rear face of the target plate (50, 150) being selectively connected to the central support structure (12, 102),
the front face of the target plate (50, 150) having a magnetic surface (155) disposed thereon, and a magnetic target (52, 170) disposed on and held by the magnetic surface (155) of the target plate (50, 150).
6. The universal targeting stand (10, 100) according to claim 5, wherein the target plate (50, 150) comprises a plurality of panel sections (151).
7. The universal targeting stand (10, 100) according to claim 6, wherein the panel sections (151) comprise four panel sections which are foldably connected in series to each other.
8. The universal targeting stand (10, 100) according to claim 5, wherein the stand comprises a wheeled base (172).
9. The universal targeting stand (10, 100) according to claim 5, further comprising a calibrating mat (60, 160), the calibrating mat (60, 160) comprising a series of grid lines (66, 162) for calibration.
10 A method of using a universal targeting stand (10, 100) according to claim 1 , comprising the step of affixing a target sheet (52) to a target plate (50, 150) by utilizing a target sheet (52, 170) that is magnetic or attachable by hook and loop fasteners to the target plate (50, 150). 11 A target sheet (52, 170) for use with the universal targeting stand (10, 100) according to claim 1, comprising a target image (58, 158) printed on a side (56) of a vinyl sheet (52, 170) and a magnetic backing sheet (54).
12 Use of a calibrating mat (60, 160) with a universal targeting stand (10, 100) according to claim 1, the calibrating mat (60, 160) comprising ends (62) connecting a mat surface (64) between them wherein the mat surface (64) has measurement markings (66, 162) for aligning with a vehicle.
EP18708466.0A 2017-02-24 2018-02-26 Universal target stand for adas static calibration, method of using the same, target plate for the same and use of a mat for the same Active EP3586055B1 (en)

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US201762463476P 2017-02-24 2017-02-24
PCT/GB2018/050491 WO2018154328A1 (en) 2017-02-24 2018-02-26 Universal target stand for adas static calibration, method of using the same, target plate for the same and use of a mat for the same

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EP (1) EP3586055B1 (en)
AU (1) AU2018224365B2 (en)
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US20210356069A1 (en) 2021-11-18
MX2019010030A (en) 2019-10-14
AU2018224365B2 (en) 2022-06-23
EP3586055B1 (en) 2023-04-19
AU2018224365A1 (en) 2019-08-15
BR112019016954A2 (en) 2020-04-14
WO2018154328A1 (en) 2018-08-30
CA3053087A1 (en) 2018-08-30
US20190376640A1 (en) 2019-12-12
US11079060B2 (en) 2021-08-03
US12060966B2 (en) 2024-08-13

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